*
* @author Roland Haeder <webmaster@ship-simu.org>
* @version 0.0.0
- * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009, 2010 Core Developer Team
+ * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2011 Core Developer Team
* @license GNU GPL 3.0 or any newer version
* @link http://www.ship-simu.org
*
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
class ConsoleTools extends BaseFrameworkSystem {
+ // Constants
+ const HTTP_EOL = "\r\n";
+ const HTTP_USER_AGENT = 'ConsoleTools/1.0';
+
/**
* Protected constructor
*
$ip = '127.0.0.1';
// Get a new instance
- $helper = new ConsoleTools();
+ $helperInstance = new ConsoleTools();
try {
// Get a file pointer
$io->closeFile();
// Resolve the IP number
- $ip = $helper->resolveIpAddress($hostname);
+ $ip = $helperInstance->resolveIpAddress($hostname);
} catch (FileIoException $e) {
// Fall-back to 'SESSION_SVR' which found on my Sun Station
if (isset($_SERVER['SESSION_SVR'])) {
// Resolve it
- $ip = $helper->resolveIpAddress($_SERVER['SESSION_SVR']);
+ $ip = $helperInstance->resolveIpAddress($_SERVER['SESSION_SVR']);
} else {
// Could not find our hostname
- $helper->debugOutput(sprintf("[%s:] WARNING: Cannot resolve my own IP address.",
- $helper->__toString()
+ $helperInstance->debugOutput(sprintf("[%s:] WARNING: Cannot resolve my own IP address.",
+ $helperInstance->__toString()
));
}
} catch (FrameworkException $e) {
// Output debug message
- $helper->debugOutput(sprintf("[%s:] Problem while resolving own IP address: [%s|%s]:%s",
- $helper->__toString(),
+ $helperInstance->debugOutput(sprintf("[%s:] Problem while resolving own IP address: [%s|%s]:%s",
+ $helperInstance->__toString(),
$e->__toString(),
$e->getHexCode(),
$e->getMessage()
}
// Set it in configuration
- FrameworkConfiguration::getInstance()->setServerAddress($ip);
+ FrameworkConfiguration::getSelfInstance()->setServerAddress($ip);
}
/**
* Determines own remote IP address (e.g. can be used to probe if we are
* reachable from outside by determining external IP and then connect to it.
* This is accomblished by connecting to the IP of www.ship-simu.org which
- * should default to 217.172.186.31. Of course, this method requires a valid
- * and working Internet connection to work properly.
+ * should default to 188.138.90.169 and requesting /ip.php which does only
+ * return the content of $_SERVER['REMOTE_ADDR']. Of course, this method
+ * requires a working Internet connection.
*
- * This method is taken and lightly rewritten from a user comment on php.net:
+ * This method is taken from a user comment on php.net and heavily rewritten.
+ * Compare to following link:
* http://de.php.net/manual/en/function.socket-create.php#49368
*
- * @param $dest IP destination we should connect to
- * @param $port Port destination we should connect to
* @return $externalAddress The determined external IP address
* @throws InvalidSocketException If socket initialization wents wrong or if an errors occurs
+ * @todo This should be moved out to an external class, e.g. HttpClient
+ * @todo Make IP, host name, port and script name configurable
*/
- public function determineExternalIp ($dest = '217.172.186.31', $port = 80) {
- // First get a socket
- $socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
-
- // Is it valid?
- if (!is_resource($socket)) {
- // Throw InvalidSocketException
- throw new InvalidSocketException (array($this, gettype($socket), 0, 'unknown'));
- } // END - if
+ public static function determineExternalIp () {
+ // Get helper instance
+ $helperInstance = new ConsoleTools();
- // Get socket error code for verification
- $socketError = socket_last_error($socket);
+ // First get a socket
+ // @TODO Add some DNS caching here
+ $socketResource = fsockopen('188.138.90.169', 80, $errorNo, $errorStr, 5);
// Check if there was an error else
- if ($socketError > 0) {
+ if ($errorNo > 0) {
// Then throw again
- throw new InvalidSocketException(array($this, gettype($socket), $socketError, socket_strerror($socketError)), BaseListener::EXCEPTION_INVALID_SOCKET);
+ throw new InvalidSocketException(array($helperInstance, gettype($socketResource), $errorNo, $errorStr), BaseListener::EXCEPTION_INVALID_SOCKET);
} // END - if
- // Connect to the destination
- socket_connect($socket, $dest, $port);
+ // Prepare the GET request
+ $request = 'GET /ip.php HTTP/1.0' . self::HTTP_EOL;
+ $request .= 'Host: ship-simu.org' . self::HTTP_EOL;
+ $request .= 'User-Agent: ' . self::HTTP_USER_AGENT . self::HTTP_EOL;
+ $request .= 'Connection: close' . self::HTTP_EOL;
+ $request .= self::HTTP_EOL;
+
+ // Send it to the socket
+ fwrite($socketResource, $request);
+
+ // Init IP (this will always be the last line)
+ $externalAddress = 'invalid';
- // Get the socket address (our external IP) and port (ignored)
- socket_getsockname($socket, $externalAddress, $ourPort);
+ // And read the reply
+ while (!feof($socketResource)) {
+ $externalAddress = fgets($socketResource, 128);
+ } // END - while
- // Close the socket
- socket_close($socket);
+ // Close socket
+ fclose($socketResource);
// Return determined external IP
return $externalAddress;
projects / core.git / blobdiff